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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <dev@noladev.com> |
| 8 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Code\Generator; |
| 16 | |
| 17 | /** |
| 18 | * Abstract generator class |
| 19 | * |
| 20 | * @category Pop |
| 21 | * @package Pop\Code |
| 22 | * @author Nick Sagona, III <dev@noladev.com> |
| 23 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 24 | * @license https://www.popphp.org/license New BSD License |
| 25 | * @version 6.0.0 |
| 26 | */ |
| 27 | class DocblockGenerator extends AbstractGenerator |
| 28 | { |
| 29 | |
| 30 | /** |
| 31 | * Docblock description |
| 32 | * @var ?string |
| 33 | */ |
| 34 | protected ?string $desc = null; |
| 35 | |
| 36 | /** |
| 37 | * Docblock tags |
| 38 | * @var array |
| 39 | */ |
| 40 | protected array $tags = ['param' => []]; |
| 41 | |
| 42 | /** |
| 43 | * Constructor |
| 44 | * |
| 45 | * Instantiate the docblock generator object |
| 46 | * |
| 47 | * @param ?string $desc |
| 48 | * @param int $indent |
| 49 | */ |
| 50 | public function __construct(?string $desc = null, int $indent = 4) |
| 51 | { |
| 52 | $this->setDesc($desc); |
| 53 | $this->setIndent($indent); |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Set the docblock description |
| 58 | * |
| 59 | * @param ?string $desc |
| 60 | * @return DocblockGenerator |
| 61 | */ |
| 62 | public function setDesc(?string $desc = null): DocblockGenerator |
| 63 | { |
| 64 | $this->desc = $desc; |
| 65 | return $this; |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * Get the docblock description |
| 70 | * |
| 71 | * @return string|null |
| 72 | */ |
| 73 | public function getDesc(): string|null |
| 74 | { |
| 75 | return $this->desc; |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * Has a docblock description |
| 80 | * |
| 81 | * @return bool |
| 82 | */ |
| 83 | public function hasDesc(): bool |
| 84 | { |
| 85 | return ($this->desc !== null); |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Add a basic tag |
| 90 | * |
| 91 | * @param string $name |
| 92 | * @param ?string $desc |
| 93 | * @return DocblockGenerator |
| 94 | */ |
| 95 | public function addTag(string $name, ?string $desc = null): DocblockGenerator |
| 96 | { |
| 97 | $this->tags[$name] = $desc; |
| 98 | return $this; |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * Add basic tags |
| 103 | * |
| 104 | * @param array $tags |
| 105 | * @return DocblockGenerator |
| 106 | */ |
| 107 | public function addTags(array $tags): DocblockGenerator |
| 108 | { |
| 109 | foreach ($tags as $name => $desc) { |
| 110 | $this->tags[$name] = $desc; |
| 111 | } |
| 112 | return $this; |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Get a tag |
| 117 | * |
| 118 | * @param string $name |
| 119 | * @return string|null |
| 120 | */ |
| 121 | public function getTag(string $name): string|null |
| 122 | { |
| 123 | return $this->tags[$name] ?? null; |
| 124 | } |
| 125 | |
| 126 | /** |
| 127 | * Has a tag |
| 128 | * |
| 129 | * @param string $name |
| 130 | * @return bool |
| 131 | */ |
| 132 | public function hasTag(string $name): bool |
| 133 | { |
| 134 | return (isset($this->tags[$name])); |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * Has tags |
| 139 | * |
| 140 | * @return bool |
| 141 | */ |
| 142 | public function hasTags(): bool |
| 143 | { |
| 144 | return ((count($this->tags) > 1) || (count($this->tags['param']) > 0)); |
| 145 | } |
| 146 | |
| 147 | /** |
| 148 | * Add a param tag |
| 149 | * |
| 150 | * @param ?string $type |
| 151 | * @param ?string $var |
| 152 | * @param ?string $desc |
| 153 | * @return DocblockGenerator |
| 154 | */ |
| 155 | public function addParam(?string $type = null, ?string $var = null, ?string $desc = null): DocblockGenerator |
| 156 | { |
| 157 | $this->tags['param'][] = ['type' => $type, 'var' => $var, 'desc' => $desc]; |
| 158 | return $this; |
| 159 | } |
| 160 | |
| 161 | /** |
| 162 | * Add a param tag |
| 163 | * |
| 164 | * @param array $params |
| 165 | * @return DocblockGenerator |
| 166 | */ |
| 167 | public function addParams(array $params): DocblockGenerator |
| 168 | { |
| 169 | $params = (isset($params[0]) && is_array($params[0])) ? $params : [$params]; |
| 170 | foreach ($params as $param) { |
| 171 | $this->tags['param'][] = $param; |
| 172 | } |
| 173 | return $this; |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * Get a param |
| 178 | * |
| 179 | * @param int $index |
| 180 | * @return array|null |
| 181 | */ |
| 182 | public function getParam(int $index): array|null |
| 183 | { |
| 184 | return (isset($this->tags['param']) && isset($this->tags['param'][$index])) ? $this->tags['param'][$index] : null; |
| 185 | } |
| 186 | |
| 187 | /** |
| 188 | * Has a param |
| 189 | * |
| 190 | * @param int $index |
| 191 | * @return bool |
| 192 | */ |
| 193 | public function hasParam(int $index): bool |
| 194 | { |
| 195 | return (isset($this->tags['param']) && isset($this->tags['param'][$index])); |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Find a param tag by its variable name (e.g. '$foo'), not by index -- returns the first |
| 200 | * match's full ['type' => ..., 'var' => ..., 'desc' => ...] array, or null if none matches. |
| 201 | * Used to look up (and preserve) an existing param's description before removeParam() |
| 202 | * discards it, e.g. when re-syncing a param entry that already carries a hand-written |
| 203 | * description from a reflected docblock. |
| 204 | * |
| 205 | * @param string $var |
| 206 | * @return array|null |
| 207 | */ |
| 208 | public function findParam(string $var): array|null |
| 209 | { |
| 210 | foreach ($this->tags['param'] as $param) { |
| 211 | if (($param['var'] ?? null) === $var) { |
| 212 | return $param; |
| 213 | } |
| 214 | } |
| 215 | return null; |
| 216 | } |
| 217 | |
| 218 | /** |
| 219 | * Remove a param tag by its variable name (e.g. '$foo'), not by index -- removes the first |
| 220 | * match, if any, and re-indexes the remaining params. A no-op if no param has that variable |
| 221 | * name. Used to replace a stale @param entry when a caller re-adds a parameter of the same |
| 222 | * name with a different type (params are otherwise append-only via addParam()/addParams()). |
| 223 | * |
| 224 | * @param string $var |
| 225 | * @return DocblockGenerator |
| 226 | */ |
| 227 | public function removeParam(string $var): DocblockGenerator |
| 228 | { |
| 229 | foreach ($this->tags['param'] as $key => $param) { |
| 230 | if (($param['var'] ?? null) === $var) { |
| 231 | unset($this->tags['param'][$key]); |
| 232 | $this->tags['param'] = array_values($this->tags['param']); |
| 233 | break; |
| 234 | } |
| 235 | } |
| 236 | return $this; |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * Add a return tag |
| 241 | * |
| 242 | * @param string $type |
| 243 | * @param ?string $desc |
| 244 | * @return DocblockGenerator |
| 245 | */ |
| 246 | public function setReturn(string $type, ?string $desc = null): DocblockGenerator |
| 247 | { |
| 248 | $this->tags['return'] = ['type' => $type, 'desc' => $desc]; |
| 249 | return $this; |
| 250 | } |
| 251 | |
| 252 | /** |
| 253 | * Get the return |
| 254 | * |
| 255 | * @return array|null |
| 256 | */ |
| 257 | public function getReturn(): array|null |
| 258 | { |
| 259 | return $this->tags['return'] ?? null; |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * Has a return |
| 264 | * |
| 265 | * @return bool |
| 266 | */ |
| 267 | public function hasReturn(): bool |
| 268 | { |
| 269 | return (isset($this->tags['return'])); |
| 270 | } |
| 271 | |
| 272 | /** |
| 273 | * Add a throws tag |
| 274 | * |
| 275 | * @param string $type |
| 276 | * @param ?string $desc |
| 277 | * @return DocblockGenerator |
| 278 | */ |
| 279 | public function setThrows(string $type, ?string $desc = null): DocblockGenerator |
| 280 | { |
| 281 | $this->tags['throws'] = ['type' => $type, 'desc' => $desc]; |
| 282 | return $this; |
| 283 | } |
| 284 | |
| 285 | /** |
| 286 | * Get the throws |
| 287 | * |
| 288 | * @return array|null |
| 289 | */ |
| 290 | public function getThrows(): array|null |
| 291 | { |
| 292 | return $this->tags['throws'] ?? null; |
| 293 | } |
| 294 | |
| 295 | /** |
| 296 | * Has a throws |
| 297 | * |
| 298 | * @return bool |
| 299 | */ |
| 300 | public function hasThrows(): bool |
| 301 | { |
| 302 | return (isset($this->tags['throws'])); |
| 303 | } |
| 304 | |
| 305 | /** |
| 306 | * Render docblock |
| 307 | * |
| 308 | * @return string |
| 309 | */ |
| 310 | public function render(): string |
| 311 | { |
| 312 | $this->output = $this->printIndent() . '/**' . PHP_EOL; |
| 313 | |
| 314 | if (!empty($this->desc)) { |
| 315 | $desc = trim($this->desc); |
| 316 | $descAry = explode("\n", $desc); |
| 317 | $i = 0; |
| 318 | foreach ($descAry as $d) { |
| 319 | $i++; |
| 320 | $this->output .= $this->printIndent() . ' * ' . wordwrap($d, 70, PHP_EOL . $this->printIndent() . " * ") . PHP_EOL; |
| 321 | if ($i < count($descAry)) { |
| 322 | $this->output .= $this->printIndent() . ' * ' . PHP_EOL; |
| 323 | } |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | if ($this->hasTags()) { |
| 328 | $this->output .= $this->formatTags(); |
| 329 | } |
| 330 | $this->output .= $this->printIndent() . ' */' . PHP_EOL; |
| 331 | |
| 332 | return $this->output; |
| 333 | } |
| 334 | |
| 335 | /** |
| 336 | * Format the docblock tags |
| 337 | * |
| 338 | * @return string |
| 339 | */ |
| 340 | protected function formatTags(): string |
| 341 | { |
| 342 | $tags = null; |
| 343 | $tagLength = $this->getTagLength(); |
| 344 | |
| 345 | // Format basic tags |
| 346 | foreach ($this->tags as $tag => $desc) { |
| 347 | if (($tag != 'param') && ($tag != 'return') && ($tag != 'throws')) { |
| 348 | $tags .= $this->printIndent() . ' * @' . $tag . |
| 349 | str_repeat(' ', $tagLength - strlen($tag) + 1) . |
| 350 | $desc . PHP_EOL; |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | // Format param tags |
| 355 | $paramLength = $this->getParamLength(); |
| 356 | foreach ($this->tags['param'] as $param) { |
| 357 | $tags .= $this->printIndent() . ' * @param'; |
| 358 | |
| 359 | if (!empty($param['type'])) { |
| 360 | $tags .= str_repeat(' ', $tagLength - 4) . $param['type'] . |
| 361 | str_repeat(' ', $paramLength - strlen($param['type']) + 1); |
| 362 | } |
| 363 | if (!empty($param['var'])) { |
| 364 | $tags .= ' ' . $param['var']; |
| 365 | } |
| 366 | $tags .= ($param['desc'] !== null) ? ' ' . $param['desc'] . PHP_EOL : PHP_EOL; |
| 367 | } |
| 368 | |
| 369 | // Format throw tag |
| 370 | if (array_key_exists('throws', $this->tags)) { |
| 371 | $throws = $this->tags['throws']['type']; |
| 372 | if (!empty($this->tags['throws']['desc'])) { |
| 373 | $throws .= ' ' . $this->tags['throws']['desc']; |
| 374 | } |
| 375 | $tags .= $this->printIndent() . ' * @throws' . |
| 376 | str_repeat(' ', $tagLength - 5) . |
| 377 | $throws . PHP_EOL; |
| 378 | } |
| 379 | |
| 380 | // Format return tag |
| 381 | if (array_key_exists('return', $this->tags)) { |
| 382 | $tags .= $this->printIndent() . ' * @return' . |
| 383 | str_repeat(' ', $tagLength - 5) . |
| 384 | $this->tags['return']['type']; |
| 385 | if ($this->tags['return']['desc'] !== null) { |
| 386 | $tags .= ' ' . $this->tags['return']['desc'] . PHP_EOL; |
| 387 | } else { |
| 388 | $tags .= PHP_EOL; |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | return (($tags !== null) && ($this->desc !== null)) ? $this->printIndent() . ' * ' . PHP_EOL . $tags : $tags; |
| 393 | } |
| 394 | |
| 395 | /** |
| 396 | * Get the longest tag length |
| 397 | * |
| 398 | * @return int |
| 399 | */ |
| 400 | protected function getTagLength(): int |
| 401 | { |
| 402 | $length = 0; |
| 403 | |
| 404 | foreach ($this->tags as $key => $value) { |
| 405 | if (strlen($key) > $length) { |
| 406 | $length = strlen($key); |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | return $length; |
| 411 | } |
| 412 | |
| 413 | /** |
| 414 | * Get the longest param type length |
| 415 | * |
| 416 | * @return int |
| 417 | */ |
| 418 | protected function getParamLength(): int |
| 419 | { |
| 420 | $length = 0; |
| 421 | |
| 422 | foreach ($this->tags['param'] as $param) { |
| 423 | if (!empty($param['type']) && (strlen($param['type']) > $length)) { |
| 424 | $length = strlen($param['type']); |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | return $length; |
| 429 | } |
| 430 | |
| 431 | /** |
| 432 | * Print docblock |
| 433 | * |
| 434 | * @return string |
| 435 | */ |
| 436 | public function __toString(): string |
| 437 | { |
| 438 | return $this->render(); |
| 439 | } |
| 440 | |
| 441 | } |